MSD Engine RPM Limiter Pill Module 87441; RPM Modules 4,100 to 4,900 RPM

87441 MSD RPM Modules - 4000 Series Kit - Odd Increments

NEW MSD RPM MODULES, 4000 SERIES KIT,SET OF 5,ODD/4100/ 4300/4500/4700/4900

MSD Ignition 87441 RPM Module 4000 Series Kit Revolution Limiter Odd Increments

MSD Performance 8744 Module Kit 4000 Series Even Increments

MSD 4000 Series RPM Module Kit Five Modules W/ Odd Increments 4100-4900 87441